<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>demo01css的三种位置</title>
    <style>
        h4 {
            color:green !important;
        }
    </style>
    <link rel="stylesheet" href="01.css">
</head>
<body>
<h4 style="color: red;">安其拉</h4>
<h4>赵云</h4>
<h4>后裔</h4>

</body>
</html>